Christopher Watts, 33, faces three first-degree murder charges, two counts of murdering a child under 12, one count of unlawful termination of a pregnancy and three counts of tampering with a deceased human body. (Source: Weld County Sheriff/KMGH/CNN)

The father of two told police in court papers released Monday that he killed his pregnant wife after witnessing her strangling one of the girls on a baby monitor.

Investigators believe they have found the body of Mollie Tibbetts, a University of Iowa student who has been missing for more than a month. (Source: Iowa Department of Criminal Investigation via AP, File)

Investigators believe they have found the body of Mollie Tibbetts, a University of Iowa student who has been missing for more than a month.

(NASA via AP). This NASA satellite imagery shows Hurricane Lane in the Central Pacific Ocean southeast of the Hawaiian Islands Tuesday, Aug. 21, 2018. South Point on the Big Island of Hawaii is outlined at top left. Hawaii residents rushed to grocery s…

Hawaii residents rushed to stores to stock up on bottled water, ramen, toilet paper and other supplies as they faced the threat of heavy rain, flash flooding and high surf as a strengthening hurricane continued to…more>>

Hawaii residents rushed to stores to stock up on bottled water, ramen, toilet paper and other supplies as they faced the threat of heavy rain, flash flooding and high surf as a strengthening hurricane continued to churn toward the state.more>>

(Iowa Department of Criminal Investigation via AP, File). FILE – This undated file photo released by the Iowa Department of Criminal Investigation shows Mollie Tibbetts, a University of Iowa student who was reported missing from her hometown in the eas…

Authorities say they have detained a suspect in the death of Iowa college student Mollie Tibbetts, and he is being held on a federal immigration detainer.more>>

Authorities say they have detained a suspect in the death of Iowa college student Mollie Tibbetts, and he is being held on a federal immigration detainer.more>>